Tiêu đề 31.MICROBES IN HUMAN WELFARE 1.pdf ✅

7. Saccharomyces cerevisiae is employed in production of NCERT PAGE-181 / N-152 (a) idli (c) bread (b) beer (d) all of these 8. Which bacterium helps in the production of 'Swiss cheese'? (a) Propionibacterium sharmanii NCERT Page-181 / N-151 (b) Trichoderma polysporum (c) Saccharomyces cerevisiae (d) Aspergillus niger 9. Cheese and yogurt are products of NCERT PAGE-181 / N-151 (a) pasteurisation (b) fermentation (c) dehydration (d) distillation 8.2 MICROBES IN INDUSTRIAL PRODUCTS 10. Which one is used in production of alcohol/ethanol ? (a) Saccharomyces cerevisiae NCERT Page-183 / N-152 (b) Torulopsis utilis (c) Clostridium botulinum (d) Leuconostoc citrovorum 11. Monascus purpureus, a yeast (fungus), that is used in the commercially production of (a) acetic acid NCERT PAGE-183 / N-153 (b) ethanol (c) blood cholesterol lowering statin (d) streptokinase 12. Bioactive molecules produced from Monascus purpureus which inhibit cholesterol synthesis in blood are (a) Gluconic acid NCERT PAGE-183 / N-153 (b) Statins (c) Gibberellins (d) Bacitracin 13. Streptokinase, used as a 'clot buster' is obtained from NCERT Page-183 / N-153 (a) Streptococcus (b) Staphylococcus (c) Lactobacillus (d) Saccharomyces 14. The bioactive molecule cyclosporin A is used in the treatment of NCERT Page-183 / N-153 (a) whooping cough (b) diphtheria (c) leprosy (d) organ-transplant patients
15. Statins, a bioactive molecule, inhibits the enzyme responsible for synthesis of (a) carbohydrate NCERTL Page-183 / N- 153 (b) protein (c) vitamins (d) cholesterol 16. Cyclosporin A is used for NCERT Page-183 / N-153 (a) dissolving blood clots. (b) lowering cholesterol level (c) immunosuppression (d) enhancing tenderness of meat 17. The chemical substances produced by some microbes which can kill or retard the growth of other microbes are called NCERT Page-182 / N-153 (a) toddy (b) lactic acid (c) antibiotics (d) ethanol 18. Which one of the micro-organism is used for production of citric acid in industries? (a) Lactobacillus bulgaricus NCERT Page-183 / N-153 (b) Penicillium citrinum (c) Aspergillus niger (d) Rhizopus nigricans 19. Antibiotics are drugs commonly used to cure diseases of NCERT/ Page-182 / N-153 (a) fungi (b) viruses (c) protozoans (d) bacteria 20. Read the following statement. "A drug used for − (A) − patients is obtained from a species of the organism - (B) - Identify A and B. Identify A and B NCERT Page-183 / N-153 A B (a) Heart Penicillium (b) Organ-transplant Trichoderma (c) Swine flu Monascus (d) AIDS Pseudomonas 21. produced by bacterium Streptococcus and modified by genetic engineering is used as a clot buster for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack. NCERT/ Page-183 / N-153 (a) Lipase (b) Streptokinase (c) Cyclosporin A (d) Antibiotic streptomycin
22. Identify the bland A, B, C and D in the table given below and select the correct answer. NCERT Page-183 / N-153 Type of microbe Scientific name Product Medical application Fungus A Cyclosporin A B C Manascus purpureus Statin D (a) A-Trichoderma polysporum, B- As an immunosuppressive agent, C-Yeast, D-Lowering of blood cholesterol. (b) A-Trichoderma polysporum, B-Lowering of blood cholesterol, C-Yeast(Fungus), D-As an immunosuppressive agent. (c) A-Yeast (Fungus), B-Lowering of blood cholesterol, C-Trichoderma polysporum, D-As an immunosuppressive agent (d) A-Streptococcus, B-As in immunosuppressive agent, C-Bacterium, D-Lowering of blood cholesterol 23. A patient brought to a hospital with myocardial infarction is normally immediately given: (a) Penicillin NCERT Page-183 / N-153 (b) Streptokinase (c) Cyclosporin-A (d) Statins 8.3 MICROBES IN SEWAGE TREATMENT 24. Primary treatment of sewage is NCERT Page-184 / N-154 (a) physical process (b) biological process (c) chemical process (d) biochemical process 25. Primary sludge is used for the NCERT Page-184 / N-154 (a) preparation of compost (b) preparation of manure (c) biogas production (d) all of these 26. Passage of effluents into large aeration tank is taken for NCERT Page-184 / N-154 (a) primary treatment (b) secondary treatment (c) tertiary treatment (d) both (a) and (b) 27. Ganga and Yamuna action plan is initiated by